runarb - 10:21 am on Mar 19, 2010 (gmt 0)

Couldn’t you just remove the period character and pad it with "0"?

Then
1.0.4.1
2.0
3.3.0
3.4.9

Would produce

10410000
20000000
33000000
34900000


And that I believe would sort correct if you sort numerically.